fix deprecation in bitcoin-util-test.py
fix deprecation in bitcoin-util-test.py

To avoid:

$ make check
{…omissis…}
Running test/util/bitcoin-util-test.py...
/usr/local/bin/python3.7 ../test/util/bitcoin-util-test.py
../test/util/bitcoin-util-test.py:31: DeprecationWarning: This method will be removed in future versions.  Use 'parser.read_file()' instead.
config.readfp(open(os.path.join(os.path.dirname(__file__), "../config.ini"), encoding="utf8"))

$ python3 --version
Python 3.7.0

fanquake/bitcoin,myriadcoin/myriadcoin,DigitalPandacoin/pandacoin,OmniLayer/omnicore,myriadcoin/myriadcoin,cdecker/bitcoin,afk11/bitcoin,namecoin/namecore,litecoin-project/litecoin,mruddy/bitcoin,CryptArc/bitcoin,bitcoinknots/bitcoin,CryptArc/bitcoin,namecoin/namecoin-core,jtimon/bitcoin,ahmedbodi/vertcoin,myriadteam/myriadcoin,midnightmagic/bitcoin,lateminer/bitcoin,bespike/litecoin,bespike/litecoin,gjhiggins/vcoincore,JeremyRubin/bitcoin,lateminer/bitcoin,fujicoin/fujicoin,bitcoinsSG/bitcoin,EthanHeilman/bitcoin,FeatherCoin/Feathercoin,pataquets/namecoin-core,litecoin-project/litecoin,wellenreiter01/Feathercoin,afk11/bitcoin,bitcoinsSG/bitcoin,RHavar/bitcoin,jambolo/bitcoin,apoelstra/bitcoin,ElementsProject/elements,Xekyo/bitcoin,GroestlCoin/bitcoin,Sjors/bitcoin,monacoinproject/monacoin,ajtowns/bitcoin,midnightmagic/bitcoin,GlobalBoost/GlobalBoost,CryptArc/bitcoin,pataquets/namecoin-core,pstratem/bitcoin,GlobalBoost/GlobalBoost,kazcw/bitcoin,litecoin-project/litecoin,tecnovert/particl-core,MeshCollider/bitcoin,jtimon/bitcoin,achow101/bitcoin,peercoin/peercoin,ajtowns/bitcoin,bespike/litecoin,ElementsProject/elements,tecnovert/particl-core,andreaskern/bitcoin,ericshawlinux/bitcoin,monacoinproject/monacoin,bespike/litecoin,pataquets/namecoin-core,rnicoll/dogecoin,Christewart/bitcoin,sstone/bitcoin,Sjors/bitcoin,r8921039/bitcoin,GroestlCoin/GroestlCoin,ElementsProject/elements,kazcw/bitcoin,bitcoin/bitcoin,CryptArc/bitcoin,rnicoll/bitcoin,fanquake/bitcoin,mm-s/bitcoin,mitchellcash/bitcoin,jonasschnelli/bitcoin,untrustbank/litecoin,GroestlCoin/GroestlCoin,ericshawlinux/bitcoin,DigitalPandacoin/pandacoin,jamesob/bitcoin,untrustbank/litecoin,vertcoin/vertcoin,GroestlCoin/bitcoin,sstone/bitcoin,practicalswift/bitcoin,MarcoFalke/bitcoin,GroestlCoin/bitcoin,RHavar/bitcoin,myriadcoin/myriadcoin,ajtowns/bitcoin,Kogser/bitcoin,instagibbs/bitcoin,jlopp/statoshi,sipsorcery/bitcoin,mruddy/bitcoin,jambolo/bitcoin,ajtowns/bitcoin,qtumproject/qtum,JeremyRubin/bitcoin,instagibbs/bitcoin,andreaskern/bitcoin,Flowdalic/bitcoin,pstratem/bitcoin,RHavar/bitcoin,jambolo/bitcoin,particl/particl-core,EthanHeilman/bitcoin,jonasschnelli/bitcoin,wellenreiter01/Feathercoin,domob1812/bitcoin,Christewart/bitcoin,achow101/bitcoin,tjps/bitcoin,Xekyo/bitcoin,n1bor/bitcoin,practicalswift/bitcoin,droark/bitcoin,nikkitan/bitcoin,Xekyo/bitcoin,bitcoin/bitcoin,myriadcoin/myriadcoin,EthanHeilman/bitcoin,domob1812/namecore,bitcoin/bitcoin,GroestlCoin/bitcoin,pstratem/bitcoin,Xekyo/bitcoin,peercoin/peercoin,nikkitan/bitcoin,tecnovert/particl-core,pstratem/bitcoin,rnicoll/dogecoin,pataquets/namecoin-core,yenliangl/bitcoin,sstone/bitcoin,prusnak/bitcoin,Kogser/bitcoin,ajtowns/bitcoin,GroestlCoin/GroestlCoin,domob1812/bitcoin,particl/particl-core,droark/bitcoin,mruddy/bitcoin,jambolo/bitcoin,mitchellcash/bitcoin,MarcoFalke/bitcoin,qtumproject/qtum,jamesob/bitcoin,apoelstra/bitcoin,pstratem/bitcoin,ericshawlinux/bitcoin,bitcoinsSG/bitcoin,droark/bitcoin,sstone/bitcoin,MarcoFalke/bitcoin,andreaskern/bitcoin,lateminer/bitcoin,n1bor/bitcoin,gjhiggins/vcoincore,droark/bitcoin,jnewbery/bitcoin,DigitalPandacoin/pandacoin,andreaskern/bitcoin,MarcoFalke/bitcoin,midnightmagic/bitcoin,r8921039/bitcoin,ElementsProject/elements,tjps/bitcoin,droark/bitcoin,mitchellcash/bitcoin,qtumproject/qtum,pataquets/namecoin-core,jnewbery/bitcoin,andreaskern/bitcoin,jtimon/bitcoin,mm-s/bitcoin,AkioNak/bitcoin,fujicoin/fujicoin,jambolo/bitcoin,domob1812/namecore,cdecker/bitcoin,particl/particl-core,FeatherCoin/Feathercoin,domob1812/namecore,practicalswift/bitcoin,litecoin-project/litecoin,n1bor/bitcoin,AkioNak/bitcoin,myriadteam/myriadcoin,litecoin-project/litecoin,bitcoin/bitcoin,ElementsProject/elements,instagibbs/bitcoin,ElementsProject/elements,bitcoin/bitcoin,FeatherCoin/Feathercoin,sipsorcery/bitcoin,dscotese/bitcoin,particl/particl-core,GroestlCoin/GroestlCoin,RHavar/bitcoin,rnicoll/dogecoin,anditto/bitcoin,OmniLayer/omnicore,achow101/bitcoin,apoelstra/bitcoin,alecalve/bitcoin,GlobalBoost/GlobalBoost,AkioNak/bitcoin,pstratem/bitcoin,sipsorcery/bitcoin,FeatherCoin/Feathercoin,OmniLayer/omnicore,Kogser/bitcoin,bitcoinsSG/bitcoin,domob1812/bitcoin,rnicoll/dogecoin,bitcoin/bitcoin,kallewoof/bitcoin,GlobalBoost/GlobalBoost,yenliangl/bitcoin,midnightmagic/bitcoin,rnicoll/bitcoin,mitchellcash/bitcoin,yenliangl/bitcoin,JeremyRubin/bitcoin,nikkitan/bitcoin,cdecker/bitcoin,jamesob/bitcoin,anditto/bitcoin,monacoinproject/monacoin,domob1812/bitcoin,peercoin/peercoin,fanquake/bitcoin,kazcw/bitcoin,cdecker/bitcoin,myriadteam/myriadcoin,anditto/bitcoin,MeshCollider/bitcoin,bitcoinknots/bitcoin,jonasschnelli/bitcoin,particl/particl-core,tjps/bitcoin,MeshCollider/bitcoin,prusnak/bitcoin,rnicoll/bitcoin,Kogser/bitcoin,bitcoinsSG/bitcoin,MarcoFalke/bitcoin,domob1812/namecore,Kogser/bitcoin,jlopp/statoshi,r8921039/bitcoin,qtumproject/qtum,fanquake/bitcoin,ahmedbodi/vertcoin,litecoin-project/litecoin,GroestlCoin/bitcoin,EthanHeilman/bitcoin,mruddy/bitcoin,jlopp/statoshi,pataquets/namecoin-core,lateminer/bitcoin,OmniLayer/omnicore,Sjors/bitcoin,bitcoinknots/bitcoin,qtumproject/qtum,jlopp/statoshi,OmniLayer/omnicore,Flowdalic/bitcoin,ericshawlinux/bitcoin,wellenreiter01/Feathercoin,practicalswift/bitcoin,particl/particl-core,wellenreiter01/Feathercoin,nikkitan/bitcoin,achow101/bitcoin,namecoin/namecore,kazcw/bitcoin,OmniLayer/omnicore,kallewoof/bitcoin,Kogser/bitcoin,tecnovert/particl-core,jnewbery/bitcoin,fujicoin/fujicoin,Xekyo/bitcoin,JeremyRubin/bitcoin,droark/bitcoin,r8921039/bitcoin,instagibbs/bitcoin,jnewbery/bitcoin,midnightmagic/bitcoin,Kogser/bitcoin,namecoin/namecore,yenliangl/bitcoin,mruddy/bitcoin,vertcoin/vertcoin,wellenreiter01/Feathercoin,Xekyo/bitcoin,n1bor/bitcoin,sipsorcery/bitcoin,Kogser/bitcoin,apoelstra/bitcoin,Kogser/bitcoin,monacoinproject/monacoin,anditto/bitcoin,nikkitan/bitcoin,vertcoin/vertcoin,wellenreiter01/Feathercoin,DigitalPandacoin/pandacoin,sstone/bitcoin,kazcw/bitcoin,GroestlCoin/bitcoin,Flowdalic/bitcoin,yenliangl/bitcoin,andreaskern/bitcoin,domob1812/bitcoin,MarcoFalke/bitcoin,rnicoll/dogecoin,ahmedbodi/vertcoin,bitcoinsSG/bitcoin,FeatherCoin/Feathercoin,Flowdalic/bitcoin,r8921039/bitcoin,mruddy/bitcoin,DigitalPandacoin/pandacoin,Christewart/bitcoin,RHavar/bitcoin,cdecker/bitcoin,Flowdalic/bitcoin,MeshCollider/bitcoin,mm-s/bitcoin,jonasschnelli/bitcoin,domob1812/namecore,mm-s/bitcoin,kallewoof/bitcoin,prusnak/bitcoin,dscotese/bitcoin,fujicoin/fujicoin,midnightmagic/bitcoin,domob1812/bitcoin,AkioNak/bitcoin,apoelstra/bitcoin,namecoin/namecoin-core,ajtowns/bitcoin,anditto/bitcoin,DigitalPandacoin/pandacoin,MeshCollider/bitcoin,vertcoin/vertcoin,lateminer/bitcoin,JeremyRubin/bitcoin,peercoin/peercoin,yenliangl/bitcoin,r8921039/bitcoin,GlobalBoost/GlobalBoost,MeshCollider/bitcoin,jtimon/bitcoin,afk11/bitcoin,dscotese/bitcoin,ericshawlinux/bitcoin,rnicoll/bitcoin,dscotese/bitcoin,gjhiggins/vcoincore,AkioNak/bitcoin,FeatherCoin/Feathercoin,anditto/bitcoin,tjps/bitcoin,jamesob/bitcoin,cdecker/bitcoin,domob1812/namecore,tecnovert/particl-core,n1bor/bitcoin,Christewart/bitcoin,practicalswift/bitcoin,vertcoin/vertcoin,dscotese/bitcoin,afk11/bitcoin,prusnak/bitcoin,tecnovert/particl-core,afk11/bitcoin,achow101/bitcoin,alecalve/bitcoin,fanquake/bitcoin,tjps/bitcoin,ahmedbodi/vertcoin,bespike/litecoin,jlopp/statoshi,qtumproject/qtum,namecoin/namecore,prusnak/bitcoin,sipsorcery/bitcoin,namecoin/namecoin-core,mm-s/bitcoin,instagibbs/bitcoin,myriadteam/myriadcoin,peercoin/peercoin,rnicoll/bitcoin,bitcoinknots/bitcoin,AkioNak/bitcoin,Kogser/bitcoin,kallewoof/bitcoin,jambolo/bitcoin,achow101/bitcoin,jonasschnelli/bitcoin,gjhiggins/vcoincore,kallewoof/bitcoin,nikkitan/bitcoin,practicalswift/bitcoin,myriadteam/myriadcoin,jamesob/bitcoin,gjhiggins/vcoincore,sstone/bitcoin,lateminer/bitcoin,Flowdalic/bitcoin,myriadcoin/myriadcoin,GroestlCoin/GroestlCoin,untrustbank/litecoin,EthanHeilman/bitcoin,monacoinproject/monacoin,gjhiggins/vcoincore,namecoin/namecore,dscotese/bitcoin,untrustbank/litecoin,ahmedbodi/vertcoin,alecalve/bitcoin,instagibbs/bitcoin,RHavar/bitcoin,monacoinproject/monacoin,alecalve/bitcoin,mitchellcash/bitcoin,alecalve/bitcoin,alecalve/bitcoin,Kogser/bitcoin,qtumproject/qtum,GroestlCoin/GroestlCoin,CryptArc/bitcoin,Sjors/bitcoin,namecoin/namecoin-core,jnewbery/bitcoin,afk11/bitcoin,untrustbank/litecoin,Christewart/bitcoin,jtimon/bitcoin,untrustbank/litecoin,kazcw/bitcoin,myriadteam/myriadcoin,Sjors/bitcoin,bespike/litecoin,tjps/bitcoin,CryptArc/bitcoin,bitcoinknots/bitcoin,fujicoin/fujicoin,prusnak/bitcoin,rnicoll/bitcoin,fanquake/bitcoin,jamesob/bitcoin,GlobalBoost/GlobalBoost,Christewart/bitcoin,sipsorcery/bitcoin,ahmedbodi/vertcoin,Kogser/bitcoin,myriadcoin/myriadcoin,mm-s/bitcoin,namecoin/namecore,mitchellcash/bitcoin,jlopp/statoshi,kallewoof/bitcoin,peercoin/peercoin,GlobalBoost/GlobalBoost,namecoin/namecoin-core,jtimon/bitcoin,n1bor/bitcoin,JeremyRubin/bitcoin,EthanHeilman/bitcoin,ericshawlinux/bitcoin,namecoin/namecoin-core,vertcoin/vertcoin,apoelstra/bitcoin,fujicoin/fujicoin